IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM
First Claim
Patent Images
1. An apparatus comprising:
- an acquisition unit configured to acquire a low frequency component of a luminance component of an image;
a correction unit configured to correct the luminance component using the acquired low frequency component;
a determination unit configured to determine a level correction amount of each pixel of the corrected image using a frequency distribution of low frequency components and a low frequency component of each pixel of the image; and
a level correction unit configured to perform level correction using the determined level correction amount and a corrected luminance distribution of the image.
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Abstract
A method for processing an image includes acquiring a low frequency component of a luminance component of an image, correcting the luminance component of the image using the acquired low frequency component, determining a level correction amount of each pixel of the corrected image using a frequency distribution of low frequency components of the acquired image and a low frequency component of each pixel of the image, and performing level correction using the determined level correction amount and a luminance distribution of the corrected image.
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18 Claims
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1. An apparatus comprising:
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an acquisition unit configured to acquire a low frequency component of a luminance component of an image; a correction unit configured to correct the luminance component using the acquired low frequency component; a determination unit configured to determine a level correction amount of each pixel of the corrected image using a frequency distribution of low frequency components and a low frequency component of each pixel of the image; and a level correction unit configured to perform level correction using the determined level correction amount and a corrected luminance distribution of the image. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method comprising:
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acquiring a low frequency component of a luminance component of an image; correcting the luminance component using the acquired low frequency component; determining a level correction amount of each pixel of the corrected image using a frequency distribution of low frequency components of the acquired image and a low frequency component of each pixel of the image; and performing level correction using the determined level correction amount and a luminance distribution of the corrected image. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification